44caliber | bf80ff95259a0b37ed82b6f8ef0a4e5e46f43826c658a3ca293940501acfeade

Analysis

max time kernel
144s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
25-05-2022 23:57

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General

Target

53b85d35bd75f81e319b73b23e5365fa.exe
Size

274KB
MD5

53b85d35bd75f81e319b73b23e5365fa
SHA1

57eed9245a9e3038f9d52a0a92e8f8e34ec300d5
SHA256

bf80ff95259a0b37ed82b6f8ef0a4e5e46f43826c658a3ca293940501acfeade
SHA512

378b91a141a41a4d73c105a891cd6dd6a736183834211b55e3639ba1de6862d9052037febd921edb79c7b53d929f5f86e2fc310b2b9bdf9625c34883a25a827b

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/978681971377066014/lhkhBc9L6y2LvaYX351vJVqWRCp9XPtoQXNCIE1xVhHhPnPH6Ahl95rLoKmIiPwfNQRi

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 freegeoip.app
5 freegeoip.app

flow	ioc
4	freegeoip.app
5	freegeoip.app

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

53b85d35bd75f81e319b73b23e5365fa.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	53b85d35bd75f81e319b73b23e5365fa.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	53b85d35bd75f81e319b73b23e5365fa.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

53b85d35bd75f81e319b73b23e5365fa.exe

pid	process
2324	53b85d35bd75f81e319b73b23e5365fa.exe
2324	53b85d35bd75f81e319b73b23e5365fa.exe
2324	53b85d35bd75f81e319b73b23e5365fa.exe
2324	53b85d35bd75f81e319b73b23e5365fa.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

53b85d35bd75f81e319b73b23e5365fa.exe

description pid process

Token: SeDebugPrivilege 2324 53b85d35bd75f81e319b73b23e5365fa.exe

description	pid	process
Token: SeDebugPrivilege	2324	53b85d35bd75f81e319b73b23e5365fa.exe

C:\Users\Admin\AppData\Local\Temp\53b85d35bd75f81e319b73b23e5365fa.exe
"C:\Users\Admin\AppData\Local\Temp\53b85d35bd75f81e319b73b23e5365fa.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2324

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
1⤵
PID:1884

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2324-130-0x0000000000F70000-0x0000000000FBA000-memory.dmp

Filesize
296KB

Download
memory/2324-131-0x00007FFE71AD0000-0x00007FFE72591000-memory.dmp

Filesize
10.8MB

Download